Can't create partition

[dissel]

Hi, I can't create partition. Here is the screen-shot.



The "New Partition" option is disabled somehow. Please let me know what is the wrong that I did.
Here is the details:
C:->10GB-->Win XP Pro-->Ntfs (Primary)
D:->9.77GB-->Vista RTM-->ntfs (Extended)
E:->9.77GB-->Storage----->ntfs(Extended)
F:->67.38GB->Storage----->ntfs(Extended)
G:->67.38GB->Storage----->ntfs(Extended)
H:->19.99GB->Storage----->Fat32(Primary)
J:->19.99GB->Storage------>Fat32(Primary)

10GB->Ubuntu 6.10--->Ext3
2GB->Linux Swap Partition

I need at least 20+20GB=40GB in Fat32 for linux workout...and Fat32 is the file system that i choose because it is easy to enable write permission In Ubuntu.

So please suggest how can I use my rest of HDD space ?

[Cool G5]

Try G-Parted from http://gparted.sourceforge.net/download.php